The first crate of the sweep, so the layout can be checked before the
remaining forty. English paragraph, empty doc line, then the Chinese, per
the glossary. Terms with a standard Chinese name use it directly, so
semi-major axis reads 半长轴 rather than carrying the English each time;
Walker, SGP4 and the frame abbreviations stay as they are.
Every comment block in the crate now has both languages, the Display
strings are untouched because translating them would change what a program
prints, and the three formulas the comments state were checked against the
code: the phase offset is 2 pi f / t, the plane spacing 2 pi / p, and the
anomaly spacing 2 pi / (t / p), all of which match.
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